.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-card h2 {
    color: #333;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    font-weight: 500;
    color: #555;
    margin-bottom: 0.5rem;
    display: block;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 5px;
    padding: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:disabled {
    opacity: 0.7;
    transform: none;
}

.alert {
    border-radius: 5px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}